ML20246A709

Forwards Insp Rept 50-298/89-18 on 890416-0531 & Notice of Violation.Nrc Considers Inadequate Station Mod Work Instructions Significant.Other Weaknesses in Plant Mod Process Identified in Paragraph 6 in Insp Rept

ML20246A709
Person / Time
Site:	Cooper
Issue date:	06/22/1989
From:	Milhoan J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
To:	Trevors G NEBRASKA PUBLIC POWER DISTRICT
Shared Package
ML20246A714	List: IR 05000298/1989018 ML20246A709 ML20246A716
References
NUDOCS 8907070067
Download: ML20246A709 (2)

See also: IR 05000298/1989018

Text

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JUN 221989

In Reply Refer To:

Docket: 50-298/89-18

Nebraska Public Power District

ATTN: Mr. George A. Trevors

Division Manager - Nuclear Support

P.O. Box 499

~ Columbus, NE~ 68602-0499

Gentlemen:

This refers to the inspection conducted by Messrs. W. R. Bennett and G. A. Pick

of this office during the period April 16 through May 31, 1989, of activities

. authorized by NRC Operating License DPR-46 for Cooper Nuclear Station, and to

the discussion of our findings with Mr. G. R. Horn and other members of your

staff at the conclusion of the inspection.

Areas examined during the inspection included operational safety verification,

monthly surveillance and maintenance observations, installation and testing of

modifications, and refueling activities. Within these areas, the inspection

consisted of selective examination of procedures and representative records,

interviews with personnel, and observations by the NRC inspectors. The

inspection findings are documented in the enclosed inspection report.

During this inspection, it was found that certain of your activities were in

violation of NRC requirements. A Notice of Violation has been enclosed with

this letter for the finding involving a failure to follow a safety procedure

concerning tagged-out equipment. A second violation was issued for a failure

to adhere to the Technical Specification operability requirements for the

standby liquid control (SLC) system, because Squib Valve A was inopwrable.

Consequently, you are required to respond to these violations, in ..riting, in

accordance with the provisions of Section 2.201 of the NRC's " Rules of

Practice," Part 2, Title 10, Code of Federal Regulations. Your response should

be based on the specifics contained in the Notice of Violation enclosed with

this letter.

With respect to the violation related to the finding that you operated for

over a year with an inoperable squib valve in the Standby Liquid Control (SLC)

system, we are concerned that this situation occurred because of inadequate

. work instructions in the design change package. While the SLC system is a

backup system used in the event of a failure of the control rod drive system

and operability of the second squib valve was successfully demonstrated, we

consider inadequate station modification work instructions significant. Other

weaknesses in your plant modification process are identified in paragraph 6 of

the enclosed inspection report. Since your response to the Notice of

Violation should address corrective actions with respect to the plant

modification process, we will review your response to determine if further

discussion on this issue is necessary.

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The: response directed by this l'etter and the accompanying' Notice is not subject

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' to the clearance procedures-of the Office of Management and Budget as required

by the Paperwork Reduction Act of 1980, PL 96-511.

Should you have.any questions concerning this inspection, we will be pleased to

discuss them with you.

Sincerely,

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James L. Milhoan, Director

Division of Reactor Projects

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o Enclosures:

'1. ' Appendix'A Notice of Violation

2.' Appendix B.- NRC Inspection Report

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50-298/89-18

cc w/ enclosures:

Cooper Nuclear Station

ATTN: Guy R. Horn, Division Manager

.of; Nuclear Operations

P.O. Box 98

Brownville,' Nebraska 68321

Kansas Radiation Control Program Director

Nebraska Radiation Control Program Director

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